diff --git a/requirements.txt b/requirements.txt
index 883c594..f471357 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -31,7 +31,7 @@ pycountry==18.12.8
 pyparsing==2.3.1
 python-dateutil==2.7.5
 pytz==2018.9
-PyYAML==3.11
+PyYAML==5.4
 requests==2.21.0
 scikit-learn==0.20.2
 scipy==1.2.0